40. Task: Players Database

40. Task: Players Database

public class Program
{
    static void Main()
    {
        Database database = new Database();
        database.Work();
    }
}

public class Player
{
    public Player(int uniqueIdentifier, string nickName, int level, bool isBanned)
    {
        UniqueIdentifier = uniqueIdentifier;
        NickName = nickName;
        Level = level;
        IsBanned = isBanned;
    }

    public int UniqueIdentifier { get; private set; }
    public string NickName { get; private set; }
    public int Level { get; private set; }
    public bool IsBanned { get; private set; }

    public void Ban()
    {
        IsBanned = true;
    }

    public void Unban()
    {
        IsBanned = false;
    }
}

public class Database
{
    private List<Player> _players = new List<Player>();
    private int _lastPlayerId = 0;

    public void Work()
    {
        const string AddPlayerCommand = "1";
        const string BanPlayerCommand = "2";
        const string UnbanPlayerCommand = "3";
        const string DeletePlayerCommand = "4";
        const string ExitCommand = "E";

        bool isWork = true;

        while (isWork == true)
        {
            Console.WriteLine("\nMenu: \n" +
                              $" {AddPlayerCommand} - Add Player\n" +
                              $" {BanPlayerCommand} - BAN Player\n" +
                              $" {UnbanPlayerCommand} - UnBAN Player\n" +
                              $" {DeletePlayerCommand} - Delete Player\n" +
                              $" {ExitCommand} - Exit\n");

            Console.Write("Enter command number: ");
            string userInput = Console.ReadLine();

            switch (userInput.ToUpper())
            {
                case AddPlayerCommand:
                    AddPlayer();
                    break;

                case BanPlayerCommand:
                    BanPlayer();
                    break;

                case UnbanPlayerCommand:
                    UnbanPlayer();
                    break;

                case DeletePlayerCommand:
                    DeletePlayer();
                    break;

                case ExitCommand:
                    isWork = false;
                    break;

                default:
                    Console.Clear();
                    continue;
            }

            ShowPlayers();

            Console.ReadKey();
            Console.Clear();
        }
    }

    private void AddPlayer()
    {
        _lastPlayerId++;

        Console.Write("\nEnter nickname player: ");
        string userNickname = Console.ReadLine();

        Console.Write("Enter level player: ");
        Int32.TryParse(Console.ReadLine(), out int userLevel);

        bool isUserBanned = false;

        Player player = new Player(_lastPlayerId, userNickname, userLevel, isUserBanned);
        _players.Add(player);

        if (_players.Contains(player) == true)
            Console.Write("\nPlayer has been successfully added to DB.\n");
    }

    private void ShowPlayers()
    {
        for (int i = 0; i < _players.Count; i++)
        {
            Console.Write($"\nPlayer ID: {_players[i].UniqueIdentifier}\n" +
                                $"Player Nickname: {_players[i].NickName}\n" +
                                $"Player Level: {_players[i].Level}\n" +
                                "Player Status: ");

            if (_players[i].IsBanned == true)
            {
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine("BANned");
            }
            else
            {
                Console.ForegroundColor = ConsoleColor.Green;
                Console.WriteLine("UnBANned");
            }

            Console.ForegroundColor = ConsoleColor.White;
        }
    }

    private void BanPlayer()
    {
        if (TryGetPlayer(out Player player) == true)
        {
            player.Ban();
            Console.WriteLine("\nPlayer has been successfully BANned.");
        }
        else
        {
            Console.WriteLine("\nPlayer not found.");
        }
    }

    private void UnbanPlayer()
    {
        if (TryGetPlayer(out Player player) == true)
        {
            player.Unban();
            Console.WriteLine("\nPlayer has been successfully disBANded.");
        }
        else
        {
            Console.WriteLine("\nPlayer not found.");
        }
    }

    private void DeletePlayer()
    {
        if (TryGetPlayer(out Player player) == true)
        {
            _players.Remove(player);
            Console.WriteLine("\nPlayer has been successfully deleted.");
        }
        else
        {
            Console.WriteLine("\nPlayer not found.");
        }
    }

    private bool TryGetPlayer(out Player player)
    {
        player = null;

        Console.WriteLine("Enter ID player: ");

        if (Int32.TryParse(Console.ReadLine(), out int playerId))
        {
            for (int i = 0; i < _players.Count; i++)
            {
                if (_players[i].UniqueIdentifier == playerId)
                {
                    player = _players[i];
                    return true;
                }
            }
        }

        return false;
    }
}